Hi Rusti!
I sell prints of my work, they are my best sellers! A lot of people on Etsy can't afford originals so its nice to have cheaper options out there that are just as good as the original anyway. When I set up my shop Wishong Design (the one I sell all my prints from) I bought myself a complete setup- scanner computer and printer, it was a very expensive outlay- $7500. But after I had researched for ages on Etsy to see what other artists sold, I knew I needed to have a very good quality printer with archival inks and paper. Most people state what type of paper and printer they use and its archival properties. No "home" printer is going to give you this so you need to outlay quite a bit of money for a decent printer. I use the Canon IPF 5100 (~$2500), it has a 12 ink printing system so its amazing! Quality is so good, and I only used Hahnemuehle fine art papers, they are the best so far!
Alternatively you can get your stuff printed from a local printers, but I found they were really expensive here in Oz, I just couldn't then compete with the pricing here on Etsy by doing it that way. Quite often you also need to print minimum numbers at the printer, having your own setup means you can just print as you need to. Your scanner needs to be really good quality as well, without it your prints are never going to be good. I use the Epson V700 (~$800) and it works very well! The only downside is that its only A4, so I am restricted to painting to a max size of A4. Anything bigger and I will have to get it professional scanned or photographed at a professional printer. You will also need a calibrator for your screen to make sure the colours you see on your screen match the colours when printed. I use the colormunki.
I have read a few forums about originals vs prints, its such a mixed response, some like prints because its more affordable, others are strictly against prints and some won't even buy the originals of some shops if they are selling prints as well! But I say do it, then you are catering for a larger audience.
Hope this helps!